1300400032 has 24 divisors (see below), whose sum is σ = 2573439876. Its totient is φ = 646828032.

The previous prime is 1300400021. The next prime is 1300400041. The reversal of 1300400032 is 2300040031.

It can be written as a sum of positive squares in 2 ways, for example, as 1293409296 + 6990736 = 35964^2 + 2644^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1300399985 and 1300400021.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99103 + ... + 111454.

Almost surely, 2^1300400032 is an apocalyptic number.

It is an amenable number.

1300400032 is a deficient number, since it is larger than the sum of its proper divisors (1273039844).

1300400032 is a wasteful number, since it uses less digits than its factorization.

1300400032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210760 (or 210752 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1300400032 is about 36061.0597736672. The cubic root of 1300400032 is about 1091.5048182671.

Adding to 1300400032 its reverse (2300040031), we get a palindrome (3600440063).

The spelling of 1300400032 in words is "one billion, three hundred million, four hundred thousand, thirty-two".